The OWC OWC2666DDR4S08G is an 8GB DDR4-2666 SO-DIMM memory module for 2019 iMacs, 2018 Mac minis, and PCs that use 260-pin PC4-21300 SO-DIMM memory.
Recommended For
- Owners of a 2019 27-inch iMac who want to add memory for heavier multitasking or memory-hungry apps; Apple lists four user-accessible SO-DIMM slots and 2666MHz DDR4 support for this model.
- Owners of a 2018 Mac mini who are comfortable arranging a memory upgrade and want to increase capacity beyond the factory 8GB; Apple specifies 2666MHz DDR4 SO-DIMM memory, though its support guidance says the memory is not user-installable.
- People with a compatible DDR4 laptop, all-in-one, or NAS that uses 260-pin 2666MHz SO-DIMMs who need an additional 8GB module, subject to their system’s supported capacity and memory configuration.
- Owners of a 2019 21.5-inch iMac who are using a qualified service provider for a memory upgrade and have verified their configuration supports 2666MHz DDR4; Apple says memory in this model is not removable by users.
Real-World Use Scenarios
- On a compatible 2018 Mac mini that feels constrained with several browser tabs and apps open, adding this module can provide more memory headroom and reduce slowdowns from macOS using disk swap; the benefit depends on the Mac’s existing memory and workload.
- For a compatible Mac mini used for development or virtual machines, extra memory can leave more room for the operating system, development tools, and a guest system to run together; it does not make the processor itself faster.
- On a compatible 27-inch 2019 iMac used for photo or video projects, adding memory can help when large files and creative apps compete for RAM, making it easier to keep work and other apps open; it will not remove CPU or graphics bottlenecks.
- In a desktop PC with a compatible DDR4 SO-DIMM slot, this module can be used to increase installed memory for everyday multitasking; check the computer’s model and existing memory configuration first, since compatibility and the final total vary by system.